/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.gravitino.storage.kv;

import java.io.IOException;

public interface TransactionalKvBackend extends KvBackend {

  /** Begin the transaction. */
  void begin();

  /**
   * Commit the transaction.
   *
   * @throws IOException if the commit operation fails
   */
  void commit() throws IOException;

  /**
   * Rollback the transaction if something goes wrong.
   *
   * @throws IOException if the rollback operation fails
   */
  void rollback() throws IOException;

  /** Close the current transaction. */
  void closeTransaction();

  /**
   * Check whether the backend is in transaction in the current thread.
   *
   * @return true if the backend is in transaction in the current thread
   */
  boolean inTransaction();
}
